What is the mass of phosphorus in a 45 kg person? .017 mass of P Incorrect

Q: Calculate the absolute uncertainty of the following expression:

A: To calculate the absolute uncertainty associated with the given equation:  4.193(±0.003)g ×1…

Q: A chemist adds 1.55 L of a 2.7M silver nitrate (AGNO, solution to a reaction flask. Calculate the…

A: Given: Molarity of silver nitrate= 2.7 M Volume= 1.55 L

Q: I. Determine the number of significa 1. 8.314 g 2. 5.008 x 10-2 mM 3. MMNACI = 58.44 g/mol %3D 4.…

A: According to guidelines, only 3 sub parts have to be answered.

Q: seous methane (CH4) will react with gaseous oxygen (0,) to produce gaseous carbon dioxide (CO,) and…

A: CH4(g) + 2O2(g) -----> CO2(g) + 2H2O(g) Mass of CH4= 11.4 g Mass of O2 = 13 g Molar mass of CH4=…

Q: Calculate the number of oxygen atoms in a 130.0 g sample of scheelite (CaWO). Be sure your answer…

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Q: From 1962 until 1981 pennies were made from 95% copper and 5% zinc and had a mass of 3.1 g. Starting…

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Q: Mass of copper chloride used 1.750 g . Initial mass of zinc strip 2.650 g . Final mass of zinc strip…

A: Given : mass of copper chloride = 1.750 gram.       Percentage of water in sample = 21.2 % To find :…

Q: A bottle of sodium hydroxide (NaOH) was found to contain 1.23 lb of this chemical. Express the…

A: The conversion factor can be described as the numerical factor that is used to convert one set of…

Q: 1. What is the sum of 89.332 g and 1.1 g? a. 90.4g b. 90.432g C. 90.0g d. 90.43g

A: The significant figures of a given number are those significant digits, which express the meaning…

Q: A 0.0045 cm thin sheet of iron weighs 0.00262 g. find the area of this iron sheet if the density of…

A: Given,Length of the thin sheet is 0.0045 cmWeight of the iron is 0.00262 gDensity of the iron is…

Q: 14. What is the mass in kilograms of 680 mL of a substance that has a density of 0.930 g/mL?

A: We have to calculate the mass in Kg.

Q: Express 3.78 m³ in units of cm³.

A:

Q: A chemist adds 0.90 L of a 2.53M zinc nitrate (Zn(NO,),) solution to a reaction flask. Calculate the…

A: Given: The volume of the solution=0.90 L Molarity of the solution=2.53 M or 2.53 mol/L The molar…

Q: The following prompt will be used to answer the fırst six questions. An experiment was performed to…

A: Significant number: The non-zero digits are all significant. Among non-zero digits, there are large…

Q: the moles

A:

Q: Calculate the mass of 0.11 moles of Cu(NO3)2. grams Give your answer to 2 decimal spaces.

A: Given that , No. Of moles of Cu(NO3)2 = 0.11 moles

Q: A chemist weighed out 80.3 g of beryllium. Calculate the number of moles of beryllium she weighed…

A:

Q: A copper atom has a ass of 1.06 x 10 22 g and a penny has a mass of 2.5 g. Use this information to…

A: 1 mole = 6.022×1023 [ Avogadro's number ] One mole of copper will consists of 6.022×1023 Copper…

Q: If you have 52% silicon dioxide in a 12.09 g sample, what mass of silicon dioxide do you have?   Am…

A: Given, Mass % = 52%  Mass of sample = 12.09 g  Mass of SiO2 = ?

Q: A chemist weighed out 7.9 g of gallium. Calculate the number of moles of gallium she weighed out.…

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Q: afari File Edit View History Bookmarks Window Help www-awn.aleks.com alex Yahoo Search Results…

A: Calculate mass of one mole of Aluminum atoms:

Q: A chemist adds 1.78 L of a 0.0117 g/L silver oxide (AgO) solution to a flask. Calculate the mass in…

A: Density of the substance is equal to the mass of the substance divided by its volume. Write the…

Q: Ammonium perchlorate (NH4CIO4) is the solid rocket fuel used by the U.S. Space Shuttle. It reacts…

A: Recall the dissociation reaction of ammonium perchlorate 2NH4ClO4 -----> N2 + Cl2 + 2O2 + 4H2O…

Q: What is the mass of water lost by a hydrate given the following data? mass of a beaker = 27.761g…

A: Mass of beaker = 27.761 g Mass of beaker and hydrate = 30.525 g Mass of hydrate = (mass of beaker…

Q: stion 1 Determine the mass (in grams) of 1.08 x 1024 gold (Au) atoms. A) 110 g B) 350 g C) 111 g Q…

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Q: How many oxygen atoms are in 9.00 g of AI2(SO4)3? Also use 2 decimal places.

A: This question involves calculation for the number of atoms present in 9.00 g of AI2(SO4)3 . For…

Q: Identify the elements present in the following molecules(see Table 1.1).

A: (a) H2O Elements present : H and O.       (b) CH4 Elements present : C and H.

Q: 1) The number with the most significant zeros is A) 250000001 B) 0.00002510 C) 2.5100000 D)…

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Q: 15. Cr(NH,),(NO,, # of molecules: # of elements: Name of element: # of atoms Total # of atoms: The…

A: Elements are the type of substances which cannot be broken down into smaller substances. Group of…

Q: Calculate the number of boron atoms in a 50.0g sample of tetraborane B4H10.   Be sure your answer…

A: Given that,  Weight of tetraborane, B4H10 = 50.0 g Molar mass of tetraborane, B4H10 = 53.32 g Moles…

Q: G. An irregularly-shaped sample of aluminum (- put on a balance and found to have a mass of 43 9.…

A: Volume of copper = Difference in the water levels…

Q: 1. Solve and choose the correct answer from the given choices: a. How many atoms of tin are found in…

A: 1. We have to calculate the number of atoms present in 3.5 moles of tin, Sn. We know that 1 mole of…

Q: A chemist weighed out 101. g of gallium. Calculate the number of moles of gallium she weighed out.…

A: Molecular weight of Gallium =69.72g/mol  ∴69.72g of Ga=1 mole of Ga  ∴101g of Ga=169.72×101…

Q: 19. DETAILS OSGENCHEM2 1.6.E.090. Calculate these masses. (a) What is the mass (in g) of 2.57 cm³ of…

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Q: Vitamin B12, cyanocobalamin, is essential for human nutrition. Its molecular formula is…

A: The ratio of mass of the substance to the number of moles of the substances is known as molar mass.…

Q: grams

A:

Q: 3. Nitrogen, when combined with oxygen, can form various oxides. 3.5 g of nitrogen gas i burned in…

A: We are authorized to solve only first three subparts of a multipart question. Kindly post rest of…

Q: A chemist adds 1.25 L of a 0.0023 mM calcium sulfate (CaSO) solution to a reaction flask. Calculate…

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Q: A brick has a mass of 4.0 kg and the Earth has a mass of 6.0 x 102 g. Use this information to answer…

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Q: About 0.50g of zinc metal was weighed out in a tared weighing cup using a top-loading balance. The…

A: The readability of top-loading balances is about 0.001g. Hence they are also called precision…

Q: ns öf mercury, how many grams of oxygen m

A: Since mercury(II) oxide breaks into mercury and oxygen, the balanced chemical equation according to…

Q: -23 g and a small airplane has a mass of 5000. kg. An aluminum atom has a mass of 4.48 x 10 Use this…

A: Given: Mass of aluminum atom = 4.48×10-23 g Mass of small airplane = 5000 kg

Q: An oxygen atom has a mass of 2.6610−23g and a glass of water has a mass of 0.050kg. Use this…

A: The number of units in one mole of any substance is equal to Avogadro’s constant. Given: Mass of…

Q: 1. Complete the table: Element Physical State Color Luster iron sulfur mercury magnesium

A: The physical state of an element depends on inter atomic forces. The colour and luster of the…

Q: 2.5 kg of dinitrogen monoxide contains how many moles of Nitrogen atoms?[ Round your answer to 3…

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: A chemist determined by measurements that 0.0250 moles of calcium participated in a chemical…

A:

Q: I need help with #4.

A: We have to calculate the mass in grams of 20 neon atoms given thatMass of one average neon atom =…

Q: Neutron stars form when large stars collapse. They are very dense, having an average density of…

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Q: A student observed the following data: Water temperature change Weight of water 8° C Metal…

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Q: 26.0 mol Hg Express your answer using three significant figures. N = atoms Submit Request Answer •…

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".